---------------------- multipart/alternative attachment =20 Listers, =20 I bought a tube of acetone/super-glue remover at the local Ace hardware =20 today in hopes that I could get this puppy taken care of. I took it over t= o a=20 piano store and spooged some ZAP CA glue onto a like piece of piano now bei= ng=20 used as a desk. I let it dry for awhile, then applied the remover. The=20 results were unbecoming, to put it mildly. Don't try this at home, kids. =20= It=20 discolors and re-textures the finish. It may work on the shiny stuff, but=20= not on=20 the satin. =20 I hope keyslips aren't too expensive. =20 Dave Stahl =20 In a message dated 7/29/05 2:30:27 PM Pacific Daylight Time, =20 deanmay@pianorebuilders.com writes: =20 Actually, steel wool will not get the scratch marks you need to make a=20 polyester finish look satin. I think they start with 400/600 sanding all in= one=20 direction and then soften that with 1000 grit, again in the same direction.= =20 The finish is too hard for steel wool alone. =20 =20 Dean=20 Dean May cell 812.239.3359=20 PianoRebuilders.com 812.235.5272=20 Terre Haute IN 47802 -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behal= f=20 Of John Ross Sent: Friday, July 29, 2005 11:50 AM To: Pianotech Subject: Re: Howdya get CA off of polyester???=20 =20 To make a polyester finish satin, it appears that the finish is rubbed with= =20 a block that is covered in superfine steel wool, or a fine grit sand paper.= =20 This breaks up the shine with very fine scratches, that go in straight line= s,=20 not circular. =20 There is one story I heard of a guy that had a satin finish Yamaha, and he=20 polished it so much that it ended up with some sections high gloss and some= =20 not. They had neglected to tell him, his finish was satin, and he thought i= s=20 should be shinier. =20 John M. Ross Windsor, Nova Scotia, Canada _jrpiano@win.eastlink.ca_ (mailto:jrpiano@win.eastlink.ca)=20 =20 ----- Original Message ----- =20 =20 From: _Farrell_ (mailto:mfarrel2@tampabay.rr.com) =20 =20 To: _Pianotech_ (mailto:pianotech@ptg.org) =20 =20 Sent: Friday, July 29, 2005 12:11 PM =20 Subject: Re: Howdya get CA off of polyester??? =20 =20 Oops, I missed that. Right you are. Thanks. =20 =20 But that begs another question: Is it not likely that either the finish is=20 not polyester or that another finish has been applied over the poly? I don'= t=20 know that I have ever seen a polyester finish in satin - seems it would jus= t=20 turn kinda white. Best be careful with this one.... =20 =20 Terry Farrell =20 In this particular case it is a satin finish. I don=E2=80=99t think he=E2= =80=99ll need the =20 buffing wheel or polish. =20 =20 Dean=20 Dean May cell 812.239.3359=20 PianoRebuilders.com 812.235.5272=20 Terre Haute IN 47802 =20 CA can be dissolved with acetone. Acetone won't hurt polyester, particularl= y=20 if its only in contact with the polyester for a short time. After you wash=20 the CA off, just polish the polyester surface again with any of the polymer= =20 polishes. It will take the slight dulling off to come up just like new. But= =20 please make sure that the finish you are proposing to removing the CA from=20= is=20 indeed polyester. If its acid cat or any of the other lacquers, acetone wil= l=20 remove both the CA and the lacquer coating. =20 =20 Ron O. =20 And then of course, have your buffing wheel available! Terry Farrell=20 I have scraped it off with a razor or knife and then dressed the finish wit= h=20 a little 4/0 steel wool. You could even use some 600 sandpaper first and=20 then the steel wool. Try an inconspicuous area first to see how it is going= to=20 look on the finish. But if you can hardly see it now probably hitting a=20 couple of times with the steel wool will make it disappear. Dean Dean May I just finished tuning a satin walnut polyester piano that has a few loose=20= =20 pins. It's a couple of years old, and still under warranty, but I figured=20= I=20 try to CA a couple of pins anyway.=20 Just to prove that performing that operation requires care and patience, I=20= =20 spilled a very small amount on the keyslip....:-([( At least it isn't laquer. I got most of it off before it had time to set,=20= =20 but as we all know, the stuff dries durned fast! So there are a couple of=20 very small marks on the front.=20 The finish doesn't appear to be damaged at all, and it's hardly visible, bu= t=20 I can see it. I'd like to do right by the customer and get it off if=20 possible, but I didn't want to apply chemicals that might take the finish o= ff in=20 conjunction with the glue... If any of you have an idea about how to remove this stuff, please let me =20 know! It's always on the fourth tuning of the day... Thanks in advance! Dave Stahl =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/d6/0b/2a/fc/attachment.htm ---------------------- multipart/alternative attachment--
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